FF-1128 Pin-Jointed Frameworks

Experiments

  • Study of Bow’s Notation, strains, stresses, forces and deflections in various frameworks, including a Warren girder and roof truss.
  • Comparison of different frameworks.
  • Structures Test Frame.
  • Digital Force Display unit.

 Specifications

  • Investigation of bar forces in a statically determinate truss.
  • Construction of various trusses possible.
  • 2 supports with node discs.
  • Load application device with force gauge mountable on different node discs.
  • Strain gauge to measure force on each bar.
  • Software to evaluate measurement data (optional).
  • Storage system to house the components.
  • Experimental set-up in frame.

Description

The experiment hardware fits onto a Frame. Students use stainless-steel members to build different pin-jointed frameworks. The members join by slotting the ends into bosses. The equipment includes two framework supports: a pivoting support, and a pivoting and rolling support. Each member has a strain gauge attached that connects to a digital strain bridge. A load cell applies loads to the structure at various angles. When connected to the Digital Force Display, the load cell measures the applied load.

A digital deflection gauge measures the deflection and the digital display shows the forces in the members.

The manual provides details of the equipment including sample experiment results and also describes how to use the equipment and gives experiment procedures.

For extra ‘virtual’ experiments, company can supply the optional Software, for use on a suitable computer. The virtual experiments simulate the tests you can perform with the hardware. They also extend the choice of tests beyond that available using only the hardware, for example: higher loads, uniform loads or different test specimens. This extends the student’s learning experience.

For automatic data acquisition of your experiment results, optional Automatic Data Acquisition Unit can also be purchased. Supplied as standard with the Structures Software that displays and logs your experiment results and gives the extra virtual experiments.